fix Sample bugs for ArkTS card.

Signed-off-by: Nzhongjianfei <zhongjianfei@huawei.com>
Change-Id: Ibdfa641e547f9a0a36aa10104e17243f6fc2b70d

zh-cn/application-dev/application-models/arkts-ui-widget-event-call.md

@@ -60,7 +60,7 @@
   }
 
   function FunBCall(data) {
-    console.log('FunACall param:' + JSON.stringify(data.readString()));
+    console.log('FunBCall param:' + JSON.stringify(data.readString()));
     return null;
   }
   
@@ -76,6 +76,8 @@
         }
     }
 
+    ...
+  
     // 进程退出时，解除监听
     onDestroy() {
         try {

zh-cn/application-dev/application-models/arkts-ui-widget-event-overview.md

@@ -55,7 +55,7 @@ Button('拉至后台')
       'abilityName': 'EntryAbility',
       'params': {
         'method': 'fun', // 自定义调用的方法名，必填
-        'message': 'testForcall' // 自定义要发送的message
+        'message': 'testForCall' // 自定义要发送的message
       }
     });
   })

zh-cn/application-dev/application-models/arkts-ui-widget-event-uiability.md

@@ -148,7 +148,6 @@
   import UIAbility from '@ohos.app.ability.UIAbility';
   import formBindingData from '@ohos.app.form.formBindingData';
   import formProvider from '@ohos.app.form.formProvider';
-  import formInfo from '@ohos.app.form.formInfo';
   
   const MSG_SEND_METHOD: string = 'funA'